Perfluoro cation surfactant, due to its low surface tension, it has good reactivity in acid, alkali and neutral medium. It can be used as wetting agent, ductility agent, equalizing agent, lighter-water( water above FC-134) extinguisher, film coating agent, auxiliary-welding agent for electronic crest etc. also for drainage and oleophobic agent, antiscalant in the field for fibre, leather etc.